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44 Cards in this Set
- Front
- Back
Unit weight |
Gamma vol |
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Mass density |
Rho vol |
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Specific gravity |
3 |
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Specific weight of h2o |
In kn/m³ , kg/m³ , g/cc , lb/ft³ |
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Common fluids and their sp gr. |
Water Sea water Oil Mercury Glyceline |
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Bulk modulus of elasticity |
Ev |
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Coefficient of compressibility |
, |
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Shear stress of fluids |
Tau |
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Kinematic viscosity |
V |
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Capillarity |
Where : |
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Surface tension |
. |
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Pressure |
Or stress is the force per unit area |
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Types of pressure |
Gage pressure Absolute pressure Vacuum pressure |
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Pascals law |
For fluids at rest, pressure is actibg in all direction and normal to the boundary surface |
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Fluid conversion |
Saha=sbhb |
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Boyles law |
Pivi=p2v2 |
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Bar to pa |
1bar =10^5 pascals |
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Liter to m3 |
1000 l = 1m3 |
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Forces on planes/ submerged planes/gates |
F= e hbar |
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Forces on curve/ submerged planes/gates |
Fx Fy F |
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Forces acting on dams |
F W1 Pmax/min Qmax/min |
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Factor of safety on dams |
Fos (overturning) Fos(sliding) |
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Archimedes principle |
A body submerged in a fluid is buoyed up by a force equal to the weight of the displayed fluid |
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Buoyant force |
, |
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Relative or dynamic equilibrium Horizontal acceleration |
Tan©= a/g |
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Upward acceleration |
P2= Yh(1+a/g) |
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Rotating vessel Energy head |
Wawarara/tuga |
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Volume of paraboloid One base Two bases |
V=½πR²h V=½πh(R²+r²) |
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Rotating vessels principle |
Without spilling any water .vol.airfinal-vol.air initial =vol spilled (0) Vol.paraboloid-vol.cylinder=spilled By spp R²/Y = r²/y=D²/Height |
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Stability of floating bodies MBO |
Babainadaw |
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Bernoulli's energy equation 3energy heads |
, |
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Bernoulli's principle |
The amount of energy at the upstream is equal to the amount of energy at the downstream plus the energy lost. |
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Head losses or frictional losses Darcy-weisbach |
0.0826fLQ² /D^5 |
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Head losses or frictional losses Mannings |
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Minor head losses due to bending or enlargement |
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Discharge |
Qav |
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Pumps or turbine (Power) |
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For pump Equation |
Head udded to E1 |
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For turbine |
Minus sa e1 |
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Hp to watts |
1hp= 746watts |
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Bee Elevation lower than 0 |
Negative |
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Pipes in series network Q HL |
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Pipes in parallel network Q HL |
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Pipes in series or parallel network equations |
Eq ng loob Eq. Ng labas (last) including Q1 Usually: Q2=Q3 |